Machine for tacking shoe-shanks.



PATENTED APR. 14, 1908.

L. A. JONES. MAGHINE FOR TACKING SHOE SHANKS.

APPLIG TION FILED NOV.29.1907.

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No. 884,392. PATENTED APR. 14, 1908.

L. A. JONES. MACHINE FOR TAOKING SHOE SHANKS.

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No. 884,392. PATENTED APR.14, 1903. L. A. JONES.

wMACHINE FOR TAGKING SHOE SHANKS.

APPLIOATION FILED NOV. 29.1907.

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MACHINE FOR TAGKING SHOE SHANKS.

APPLIOATION FILED NOV. 29. 1901.

PATENTED APR. 14, 1908. Q

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UNITED sTArns PA ENT OFFICE.

LOUIS A. JONES, OF CAMBRIDGE, MASSACHUSETTS. ASSIGNOR TO THE AMERICAN SHOE FINDING COMPANY, A CORPORATION OF MAINE.

MACHINE FOR TACKING SHOE-SHANKS.

Specification of Letters Patent.

Patented Aprill, 1908.

To all whom it may concern:

Be it known that I, LoU1s A. J ONES, a citizen of the United States, residing at Cam bridge, in the county of Middlesex and State of Massachusetts, have invented new and useful Improvements in Machines for Tacking Shoe-Shanks, of which the following is a specification.

This invention relates to improvements in machines for fastening two pieces of mate rial together by means of a tack or tacks or the like and particularly to machines for tacking metal stiffeners to leatherboard shoe shanks, and the object is to provide means whereby if one of the stiifeners fails to receive one or more tacks which it should receive the tack driving mechanism is rendered ino erative.

'le the present embodiment of my invention can be used in connection with various styles of machines for tacking stiffeners to shoe shanks, I have chosen to illustrate it as applied to a machine substantially like that shown and described in U. SaLetters Patent granted to Bradford B. WVaterman Feb. 9, 1907, No. 842,984 to which reference may be had for details of construction and operation and, therefore, a general descriptlon of much of said machine will be sufficient.

The invention consists in the combination and arrangement of parts set forth in the following specification and particularly pointed out in the appended claims.

Referring to the drawings: Figure l is a longitudinal sectional elevation of a machine embodying my invention. Fi 2 is an elevation of the same viewed from tie right of Fig. 1. Fig. 3 is an enlar ed detail elevation viewed from the left of Fig. 1. Fig. 4 is an enlarged detail longitudinal sectional elevation of the left hand end of the machine. Fig. 5 is a detail plan section taken on line 5-5 of Fig. 4. Fig. 6 is a sectional elevation taken on line 6-6 of Fig. 4, looking toward the right. Figs. 7, 8 and 9 are illustrative diagrammatic views showing in different positions the mechanism for rockin the driver on its pivot, Fig. 7 showing the driver in its normal position in alinement with the anvil, Fig. 8 showing the driver rocked on its pivot and with the spring partly compressed and Fig. 9 showing the driver at the end of its dwell, the spring being fully compressed.

Like numerals refer to like parts throughout the several views of the drawings.

In the drawings, 10 is the frame of the machine consistin of two side members on which is supportec a raceway 11 in which a plurality of stiifeners 12 are located. A feeding mechanism 13 feeds the stifieners 12 one by one a portion of their width from the bottom of the pile of stiffeners located in the raceway 11, said stilfeners moving therefrom along a horizontal raceway consisting of two guides 14, 14. A second feeding mechanism 15 comprises a feed bar 16 on which are mounted feed pawls 17, 18 and 19 which are so arranged as to feed a continuous row of the stiifeners beneathraceways 20 and separate said stiffeners from said row and feed them one by one beneath two anvils 21, 21. One of the leatherboard shanks 22 is shown resting on a vertically reciprocatory driver 23 which is actuated by a driver mechanism 24.

Each of the stiffeners 12 is provided with two perforations 25, 25 in which should be located tacks 26, 26, respectively, said tacks being placed therein by the tack placing means which in this instance consists of the raceways 20. In case one of the stiffeners 12 should fail to receive either of its tacks it is desirable that the shank 22 shall not be tacked thereto and to that end the driver 23 which is preferably formed in two parts is pivoted at 27 to a driver slide 28 forming a part of the driver mechanism 24 and is arranged to be rocked on its pivot out of operative relation with the anvils 21.

I will now proceed to describe the preferred mechanism for rocking the driver 23 on its pivot 27.

Two slides 29, 29 which are mounted to slide in ways 30, 30 in the guides 14, 14, respectively, are provided with arms 31, 31, respectively, to which a link 32 is pivotally connected, said link being forked and having two arms 33, 33 which are individually connected to the arms 31. The link 32 is provided with a slot 34 in which a block 35 is arranged to slide, said block being pivotally connected to the driver 23. A rod 36 fast to the block 35 and arranged to slide in a hole 37 in the link 32 is surrounded by a helical compression spring 38 which bears at one end against said block and at its other end against said link, said s ring being adapted to normally hold said b ock in the left hand end of the slot 34. The two parts of the driver 23 have pins 39, 39 inserted therein, respectively, said. pins being adapted to engage shoulders 40, 40 on the slide 28, whereby the rocking movement of the driver 23 in one direction is limited.

On the slides 29, 29, respectively, are pivotally mounted levers 41 41 said levers being provided, respectively, with projections 42, 42 which are normally located in the paths of movement of the points of the tacks 26, 26, respectively, each of said levers being rovided with a cam surface 43. Each of the slides 29 is normally drawn toward the right by a spring 44 which is connected at one end to a pin 45 which constitutes the pivot of the lever 41 and is connected at its other end to a pin 46 fast to the guide 14. The slides 29 are limited in their movement toward the right by the metal of the guides 14 at the termination of the ways 30, 30. The feed slide 16 is provided with a downwardly extending T-shaped projection 47 comprising two transverse arms 48, 48 which are adapted to engage the right hand ends of the levers 41, respectively, said ends being located in the paths of movement of said arms, respective when there are no tacks in contact with the projections 42, 42. WVhen the slides 29, 29 are moved toward the left as hereinafter described, the cam surfaces 43, 43 engage wipers 49, 49, respectively, each of which consists of a screw passing through a slot 50 formed in one of the guides 14, there being a nut 51 having screw-threaded engagement with said screw and located in a groove 52, whereby said screws or wipers may be adjusted toward the right or left, Fig. 4, as may be desired. 1

The general operation of the machine is as follows: As the stiffeners 12 are fed toward the drivin means which consists of the anvils 21 an driver 23, if one of the stifleners has two tacks located in its perforations, said tacks engage the inclined projections 42, 42 and as the stiffener is fed along said tacks rock the levers 41 on their ivots 45 and thus the right hand ends of sair levers are moved upwardly out of the paths of movement of the arms or projections 48, respectively, and as the feedmg movement continues until said stiffener has arrived in operative rela tion with the driver slide 28, the driver 23 and the mechanism for rocking the same on its pivot remains inactive in the position shown in full lines, Fig. 4. Therefore, when the operator places the shank 22 on the driver 23 the driver mechanism 24 acts to move the driver 23 upwardly and the tacks 26 are driven throu h said shank and clenched against said (river. If, however, either of the perforations 25 should fail to receive a tack the lever 41 over which said perforation passes remains in its normal position, as shown in Fig. 7, with its right hand end in the path of movement of the arm or projection 48 and as the feed slide 16 moves toward the left said projection strikes the end of said lever and the slide 29 is thereby moved toward the left in unison with the feed slide 16, thereby acting through the link 32, spring 38 and block 35 to rock the driver 23 into the position shown in Fig. 8. As the pins 39'strike the shoulders 40, respectively, the rocking movement of thedriver ceases and as the movement of the link 32 continues the spring 38 is compressed and thus it will be seen that said driver dwells a considerable length of time in the position shown in Fig. 8. If, now, the driver slide 28 is moved up wardly by the driver mechanism 24, it will be evident that the shank 22 is not driven against the tacks 26. The cam surface 43 of the lever 41 engages the wiper 49, as shown in Fig. 8, and as the movement of the slide 29 toward the left continues the lever 41 is tripped or in other words is rocked on its pivot 45 until its right hand end passes entirely out of engagement with the projection or arm 48, as shown in Fig. 9, and thereupon the spring 44 acts to returnthe slide 29 and parts connected thereto to the normal position shown in Fig. 4. If it were not for the tripping of the levers 41, 41 as just described, the movement of the feed bar 16 toward the left would cause the left hand ends of said levers to be carried between the driver 23 and anvil 21 with the result that when said driver ap roaches said anvil to drive the tacks, said ends would be apt to be struck by the shoe shank 22. It will be understood that by reason of the fact that both of the slides 29 are connected to the one link 32 if one of the levers 41 is engaged and carried forward the other lever will necessarily be carried forward at the same time and will be returned simultaneously therewith.

It will be evident that the mechanism for rendering the driver mechanism inoperative may be embodied in various forms and may be applied to machines other than the one in connection with which I have illustrated it and I do not limit myself to the specific embodiment herein shown.

Having thus described my invention, what I claim and desire by Letters Patent to secure is:

1. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, and instrumentalities adapted to render said driving mechanism inoperative when said first piece fails to receive a tack.

2. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, and instrumentalities including a device adapted to engage said tack, said instrumentalitles being adapted to render said driving mechanism inoperative when said first iece fails to receive a tack.

3. n a machine for fastening two pieces of material together by means of tacks or the like, means for introducing two tacks into one of said pieces, mechanism for subsequently driving said tacks into the second of said pieces, and instrumentalities including devices adapted to engage said tacks, respectively, said instrumentalities being adapted to render said driving mechanism inoperative when said first piece fails to receive two tacks.

4. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, means for moving said first piece from said tack introducing means toward said driving mechanism, and instrumentalities including a device adapted to engage said tack while said first piece is being moved, said instrumentalities being adapted to render said driving mechanism inoperative when V said first piece fails to receive a tack.

5. In a machine for fastening two pieces of material together by means of tacks or the like, means for introducing two tacks into one of said pieces, mechanism for subsequently driving said tacks into the second of said pieces, means for moving said first piece from said tack introducing means toward said driving mechanism, and instrumentalities including devices adapted to engage said tacks, respectively, while said first piece is being moved, said instrumentalities being adapted to render said driving mechanism inoperative when said first piece fails to receive two tacks.

6. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, an anvil, a driver movable toward and away from said anvil and adapted to drive said tack into the second of said pieces, means for moving said first piece from said tack introducing means between said anvil and said driver, and instrumentalities including a device adapted to engage said tack while said first piece is being moved, said instrumentalities being adapted to move said driver out of operative relation with said anvil when said first piece fails to receive a tack.

7. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing two tacks into one of said pieces, mechanism for subsequently driving said tacks into the second of said pieces, means for feeding said first piece from said tack introducing means toward said driving mechanism, a lever, one end of which is normally located in the path of movement of one of said tacks, a second lever,

one end of which is normally located in the path of movement of the other of said tacks, the other pair of ends of said levers being normally located in the path of movement of a portion of said feeding means, and instrumentalities connecting said levers to said driving mechanism, whereby when said first piece fails to receive two tacks, said driving mechanism is rendered inoperative.

8. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, means for feeding said first piece from said tack introducing means toward said driving mechanism, a movable member, a second movable member normally located in the path of movement of said tack and in the path of movement of said first member, said tack during the feeding movement being adapted to move said second. member but of the path of movement of said first member, and mechanism operatively connecting said second member to said driving mechanism, whereby when said first piece fails to receive a tack said driving mechanism is rendered inoperative.

9. In a machine for fastening two pieces of material together by means of tacks or the like, means for introducing two tacks into one of said pieces, mechanism for subsequently driving said tacks into the second of said pieces, means for feeding said first piece from said tack introducing means toward said driving mechanism, a movable member, two members normally located in the paths of movement of said tacks, respectively, and in the path of movement of said first member, said tacks during the feeding movement being adapted to move said second members, respectively, out of the path of movement of said first member, and mechanism operatively connecting said second members to said driving mechanism, whereby when said first piece fails to receive two tacks, said driving mechanism is rendered inoperative.

10. In a machine for fastening two pieces of material together by means of tacks or the like, means for introducing two tacks into one of said pieces, an anvil, a driver movable toward and away from said anvil and adapted to drive said tacks into the second of said pieces, means for moving said first piece rom said tack introducing means between said anvil and said driver, and instrumentalities including devices adapted to engage said tacks, respectively, while said first piece is being moved, said instrumentalities being adapted to move said driver out of operative relation with said anvil when said first piece fails to receive a tack.

11. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, means for feeding said first piece from said tack introducin means toward said driving mechanism, a Iever, one end of which is normally located in the ath of movement of said tack, the other enc of said lever being normally located in the path of movement of a portion of said feeding means, and instrumentalities operatively connecting said lever to said drivin mechanism, where by when said first piece fails to receive a tack said driving mechanism is rendered inoperative.

12. In a machine fol-fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, mechanism for subsequently driving said tack into the second of said pieces, means for feeding said first piece from said tack introducing means toward 7 said driving mechanism, a member adapted to be moved toward and away from said driving mechanism, a-second member movable toward and away from said driving mechanism, a lever pivoted on said first member, one end of said lever normally located in the path of movement of said tack, the other end of said lever normally located in the path of movement of said second member, and instrumentalities connecting said first member to said driving mechanism, whereby when said first piece fails to receive a tack, said driving mechanism is rendered inoperative.

13. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, an anvil, a driver movable toward and away from said anvil and adapted to drive said tack into the second of said pieces, means for moving said first piece from said tack introducing means between said anvil and said driver, and instrumentalities including a device adapted to engage said tack while said first piece is being moved, said instrumentalities being adapted to move said driver out of o erative relation with said anvil when said first piece fails to receive a tack, a part of said. instrumentalities being adapted to permit said driver to dwell for a period of time out of operative relation with said anvil.

14. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack'into one of said pieces, an anvil, a driver movable toward and away from said anvil and adapted to drive said tack into the second of said pieces, means for moving said first piece from said tack introducing means between said anvil and said driver, and instrumentalities including a device adapted to engage said tack wh1le said first piece is b6111 moved, said instrumentalities eing adapted to move said driver out of operative relation with said anvil when said first piece fails to receive a tack, said instrumentalities com rising a spring arranged to ermit said river to dwell for a period of time out of operative relation with said anvil.

15. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said ieces, an anvil, a member movable towar and away from said anvil, a driver pivotally connected to said member and adapted to drive said tack into the second of said pieces, means for moving said first piecefrom said tack introducing means between said anvil and said driver, and instrumentalities includin a device ada ted to engage said tack, said instrumenta ities being adapted to rock said driver on its pivot out of operative relation with said anvil when said first piece fails to receive a tack.

16. In a machine for fastening two pieces of material together by means of tacks or the like, means for introducin two tacks into one of said pieces, an anvi a member movable toward and away from said anvil, a driver pivotally connected to said member and adapted to drive said tacks into the second of said pieces, means for moving said first piece from said tack introducing means between said anvil and said driver, and instrumentalities including devices ada ted to engage said tacks, respectively, wh e said first iece is being moved, said instrumentalities eing adapted to rock said driver on its pivot out of operative relation with said anvil when said piece fails to receive two tacks.

17. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said ieces, an anvil, a member movable toward and away from said anvil, a

driver pivotally connected to said member and adapted to drive said tack into the second of said pieces, means for feeding said first piece from said tack introducing means between said anvil and said driver, a member adapted to be moved transversely of said anvil, a third member movable transversely of said anvil, a lever pivoted on said secondnamed member, one end of said lever being normally located in the path of said tack, the other end of said lever being normally located in the path of said third member, and a link connecting said second-named member to said driver, whereby when said first piece fails to receive a tack, said driver is rocked on its ivot out of operative relation with said anvii 18. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said pieces, an anvil, a member movable toward and away from said anvil, a driver pivotally connected to said member v and adapted to drive said tack into the sec- 0nd of said pieces, means for feeding said first piece from said tack introducing means between said anvil and said driver, a member adapted to be moved transversely of said anvil, a third member movable transversely of said anvil, a lever pivoted on said second named member, one end of said lever being normally located in the path of said tack, the other end of said lever being normally located in the path of said third member, a link connecting said second-named member to said driver, whereby when said first piece fails to receive a tack, said driver is rocked on its pivot out of operative relation with said anvil, and a s ring arranged to permit said driver to dwell for a period of time out of operative relation with said anvil.

19. In a machine for fastening two pieces of material together by means of a tack or the like, means for introducing a tack into one of said ieces, an anvil, a member movable toward and away-from said anvil, a driver pivotally connected to said member and adapted to drive said tack into the sec- 0nd of said pieces, means for feeding said first piece from said tack introducing means between said anvil and said driver, a member adapted to be moved transversely of said anvil, a third member movable transversely of said anvil, a lever pivoted on said secondnamed member, one end of said lever being normally located in the path of said tack, the other end of said lever being normally located in the path of said third member, a link pivotally connected to said second member, said link provided with a longitudinal slot, a block pivotally connected to said driver and located in said slot, and a spring bearing at one end against said block and adapted to normally hold said block against one end of said slot.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LOUIS A. JONES.

Witnesses:

DANIEL A. RoLLINs, ANNIE J. DAILEY. 

